118 lines
2.3 KiB
Go
118 lines
2.3 KiB
Go
package api
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import (
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"bufio"
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"bytes"
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"context"
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"encoding/json"
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"fmt"
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"net/http"
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"net/url"
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)
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type StatusError struct {
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StatusCode int
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Status string
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Message string
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}
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func (e StatusError) Error() string {
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if e.Message != "" {
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return fmt.Sprintf("%s: %s", e.Status, e.Message)
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}
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return e.Status
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}
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type Client struct {
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base url.URL
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}
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func NewClient(hosts ...string) *Client {
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host := "127.0.0.1:11434"
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if len(hosts) > 0 {
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host = hosts[0]
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}
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return &Client{
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base: url.URL{Scheme: "http", Host: host},
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}
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}
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func (c *Client) stream(ctx context.Context, method, path string, data any, fn func([]byte) error) error {
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var buf *bytes.Buffer
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if data != nil {
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bts, err := json.Marshal(data)
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if err != nil {
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return err
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}
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buf = bytes.NewBuffer(bts)
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}
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request, err := http.NewRequestWithContext(ctx, method, c.base.JoinPath(path).String(), buf)
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if err != nil {
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return err
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}
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request.Header.Set("Content-Type", "application/json")
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request.Header.Set("Accept", "application/json")
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response, err := http.DefaultClient.Do(request)
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if err != nil {
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return err
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}
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defer response.Body.Close()
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scanner := bufio.NewScanner(response.Body)
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for scanner.Scan() {
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var errorResponse struct {
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Error string `json:"error,omitempty"`
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}
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bts := scanner.Bytes()
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if err := json.Unmarshal(bts, &errorResponse); err != nil {
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return fmt.Errorf("unmarshal: %w", err)
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}
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if response.StatusCode >= 400 {
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return StatusError{
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StatusCode: response.StatusCode,
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Status: response.Status,
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Message: errorResponse.Error,
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}
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}
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if err := fn(bts); err != nil {
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return err
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}
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}
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return nil
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}
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type GenerateResponseFunc func(GenerateResponse) error
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func (c *Client) Generate(ctx context.Context, req *GenerateRequest, fn GenerateResponseFunc) error {
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return c.stream(ctx, http.MethodPost, "/api/generate", req, func(bts []byte) error {
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var resp GenerateResponse
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if err := json.Unmarshal(bts, &resp); err != nil {
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return err
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}
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return fn(resp)
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})
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}
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type PullProgressFunc func(PullProgress) error
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func (c *Client) Pull(ctx context.Context, req *PullRequest, fn PullProgressFunc) error {
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return c.stream(ctx, http.MethodPost, "/api/pull", req, func(bts []byte) error {
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var resp PullProgress
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if err := json.Unmarshal(bts, &resp); err != nil {
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return err
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}
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return fn(resp)
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})
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}
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